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Q. Where can you test Apple iPhone apps if you don’t have the device? iOS Simulator can be used to test mobile applications. Xcode tool that comes along with iO…

Navigation Based Controller A NAVIGATION CONTROLLER manages a stack of view controllers to provide a drill-down interface for hierarchical content. The view h…

Audio player:- Audio and video is quite common in the latest devices. An instance of the AVAudioPlayer class, called an audio player, provides playback of audi…

Picker view:- A PICKER VIEW lets the user choose between certain options by spinning a wheel on the screen. Picker views are well suited for choosing things li…

Table View: Table Views  are versatile, User Interface objects frequently found in iOS apps. A table view presents data in a scrollable list of multiple rows t…

Switching VIEWS :- . h file:- [1. Using Present model view Controller] # import # import “SecondviewController. h” @ interface Switching view Controller: U…

UIgestures  recognizer is an abstract base class for concrete gesture – recognizer classes.  A gestures- recognizer object (or, simply, a gesture recognizer) d…

The UIKIT Framework provides the crucial infrastructure needed to construct and manage iOS apps. UI Switch:- -(void)  viewDidload { UISwitch     * a Switc…

UI view  Animations: Several classes in the UIKIT Framework can be referred at UIKIT Faframework Fundamentals Animation: 1 [UIview beginAnimations : nil…

Core Graphics FrameWork Reference: The Core Graphics Framework is a c-based API that is based on the quartz advanced drawing engine. It provides low-level ligh…

IMAGE VIEW:- A  UIImageView   object displays a single image or a sequence of animated images in your interface. IMAGE VIEWS let you efficiently draw any image…

UIKIT Frame work: UserInterfaceKit The UIKIT FRAMEWORK  (UIKit.framework) provides the  crucial infrastructure needed to construct and manage iOS apps. This fr…

NSNotification Center:- An NSNotificationCenter object (or simply, notification center) provides a mechanism for broadcasting information within a program. An …

NS thread: An NSThread object controls a thread of execution. Use this class when you want to have an OBJECTIVE-C method run in its own thread of execution. Th…

NS thread:- An NSThread object controls a thread of execution. Use this class when you want to have an OBJECTIVE-C method run in its own thread of execution. T…

NSDate:- NSDate objects encapsulate a single point in time, independent of any particular calendrical system or time zone. DATE OBJECTS are immutable, represen…

NS DICTIONARY:- The NSDictionary class declares the programmatic interface to Objects that manage immutable associations of keys and values. Use this class or …

NSData:-  NSData and its mutable subclass NSMutableData provide data objects, object-oriented wrappers for byte buffers. Data objects let simple allocated buff…

NSSet:- The NSSet, NSMutableSet, and NSCountedSet classes declare the programmatic interface to an unordered collection of objects. NSSet declares the program…

NSArray:- NSArray is OBJECTIVE-C’s general-purpose array type. It represents an ordered collection of objects, and it provides a high-level interface for sorti…

NS string class:- The NSString class and its mutable subclass, NSMutableString, provide an extensive set of APIS for working with strings, including methods fo…

The Foundation framework defines a base layer of OBJECTIVE-C CLASSES. In addition to providing a set of useful primitive object classes, it introduces several p…

The exception handling mechanisms available to OBJECTIVE-C programs are effective ways of dealing with exceptional conditions. They decouple the detection and h…

Protocols A PROTOCOL is a group of related properties and methods that can be implemented by any class. Protocols are nothing but interface in other language.…

Enum: An enumeration defines a common type for a group of related values and enables you to work with those values in a type-safe way within your code. An enu…

Memory Management Modern computer languages use garbage collection (GC). A GC is a runtime algorithm that scans the allocated objects in our program and de-a…

Objective C Corporation it was designed to enable power full feature of objective oriented programming it works as a power full set of extension to the  c-lang…

MVC (Model View Controller) In 1970’s small talk define on architecture called MVC coco of frame work uses this MVC the main use of MVC architecture (model vie…

Implementation files In this group we have all the . m files are presented Ex: Sample App delegate .m Sample View controller .m Sample main .m    [main’s …

Mobile Technologies It is a collective term using to describe the various of cylinder technologies Many experts argue that feature of computer technology is…